发明授权
US06909222B2 Piezoelectric actuator, and timepiece and portable equipment having the same
有权
压电致动器，以及具有该压电致动器的钟表和便携式设备
- 专利标题： Piezoelectric actuator, and timepiece and portable equipment having the same
- 专利标题（中）： 压电致动器，以及具有该压电致动器的钟表和便携式设备
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申请号： US10377858申请日： 2003-02-28
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公开(公告)号： US06909222B2公开(公告)日： 2005-06-21
- 发明人: Akihiro Sawada
- 申请人： Akihiro Sawada
- 申请人地址： JP Tokyo
- 专利权人： Seiko Epson Corporation
- 当前专利权人： Seiko Epson Corporation
- 当前专利权人地址： JP Tokyo
- 代理商 Michael T. Gabrik
- 优先权： JP2002-055784 20020301
- 主分类号： G04C3/12
- IPC分类号： G04C3/12 ; G04C17/00 ; H01L41/09 ; H02N2/00 ; H02N2/12 ; H04R17/10 ; H01L41/083 ; H01L41/047
摘要：
A diaphragm 10 is fixed to a base plate 102 by a screw 13. A lever 20 has a spring member 23, a rotor-fixing member 25, and an insertion hole 22 formed therein. By passing a shaft 21 through the insertion hole 22, the lever 20 is turnably supported so as to turn about its own axis. In a state in which the spring member 23 abuts against an eccentric pressure-adjusting cam 26, a pressing force for urging the diaphragm 10 via the rotor 100 is adjusted by turning the pressure-adjusting cam 26 so as to change an elastic force of the spring member 23.
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